Constraint#

class lsst.dax.apdb.schema_model.Constraint(name: str | None, id: str, deferrable: bool = False, initially: str | None = None, description: str | None = None, annotations: ~collections.abc.Mapping[str, ~typing.Any] = <factory>)#

Bases: object

Constraint description, this is a base class, actual constraints will be instances of one of the subclasses.

Attributes Summary

`annotations`	Additional annotations for this constraint.
`deferrable`	If `True` then this constraint will be declared as deferrable.
`description`	Constraint description.
`id`	Felis ID for this constraint.
`initially`	Value for `INITIALLY` clause, only used of `deferrable` is True.
`name`	Constraint name.

Methods Summary

from_felis(dm_constr, columns)

Convert Felis constraint definition into instance of this class.

Attributes Documentation

annotations: Mapping[str, Any] = <dataclasses._MISSING_TYPE object>#: Additional annotations for this constraint.

deferrable: bool = False#: If True then this constraint will be declared as deferrable.

description: str | None = None#: Constraint description.

id: str = <dataclasses._MISSING_TYPE object>#: Felis ID for this constraint.

initially: str | None = None#: Value for INITIALLY clause, only used of deferrable is True.

name: str | None = <dataclasses._MISSING_TYPE object>#: Constraint name.

Methods Documentation

classmethod from_felis(dm_constr: Constraint, columns: Mapping[str, Column]) → Constraint#

Convert Felis constraint definition into instance of this class.

Parameters#

dm_constfelis.datamodel.Constraint: Felis constraint definition.
columnsMapping [str, Column]: Mapping of column ID to Column instance.

Returns#

constraintConstraint: Converted constraint definition.